Apogee AD-8000 Operating Manual
24-bit 8-channel digital audio conversion system
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Summary of Contents for Apogee AD-8000
- Page 1 A A D D - - 8 8 0 0 0 0 0 0 24-bit 8-channel Digital Audio Conversion System Operating Manual and UV22 License Agreement ® Rev 1.5 — June 1999 Firmware revision 1.20...
- Page 2 Web: http://www.apogeedigital.com/ This manual is copyrighted ©1997 by APOGEE ELECTRONICS CORPORATION, with all rights reserved. Under copyright laws, this manual may not be duplicated in whole or in part without the written consent of Apogee. Part Number MANUAL–AD8000 Rev 1.4 November 1998...
- Page 3 AD-8000 Operating Manual The Apogee AD-8000 24-bit, 8-channel Digital Conversion System It’s not an option—it’s a necessity!
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Page 4: Registration And Warranty Information
This warranty is void if Apogee determines, in its sole business judgment, the defect to be the result of abuse, neglect, alteration or attempted repair by unauthorized personnel. -
Page 5: Declarations Of Conformity
Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur le matérial brouilleur du Canada. Declaration of Conformity – CE Apogee Electronics Corporation hereby declares that the product, the AD-8000 system, to which this declara- tion relates, is in material conformity with the following standards or other normative documents: •... -
Page 6: Licensing And Legal Information
You agree you will not copy the materials accompanying the AD-8000. The materi- al contained in this manual consists of information that is the property of Apogee and is intended solely for use by the purchasers of the equipment described in this manual. Apogee expressly prohibits the duplication of any portion of this manual or the use thereof for any purpose other than the operation or maintenance of the equip- ment described in this manual without the express written permission of Apogee. -
Page 7: Table Of Contents
AD-8000 Operating Manual Table of Contents Registration and Warranty Information Service Information Declarations of Conformity Licensing and Legal Information Owner’s Record Warnings ...........................9 Environmental Warnings ...........................9 Power Warning..............................9 FCC Warning ..............................9 Copyright Notice ..............................9 Introduction ........................10 Features ................................10 Firmware Revisions ............................10 Getting Started.......................11... - Page 8 AD-8000 Operating Manual Source Switch..............................18 Rear Panel ........................19 Analog Inputs........................20 The Analog Front End ............................20 Grounding ...............................20 Balanced vs Unbalanced Inputs........................20 Headroom & Gain Adjustment ........................20 Common Mode Rejection/RF Filtering......................20 Analog Line-Level Inputs ..........................20 Standard ................................21 Digital Inputs ........................21 Digital Input Capabilities ..........................21 Input Resolution Indicators..........................21...
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Page 9: Warnings
AC voltage ratings for electrical power vary from area to area. Severe damage to your unit is possible if your AD-8000 is configured incorrectly for your local power. If in doubt, consult an Apogee dealer. A label adjacent to the power connector indicates the voltage to which the unit was set on leaving the factory. -
Page 10: Introduction
As a result, this should be carried out only by technically-qualified personnel. You can option- ally ask your Apogee or one of our authorized service centers to do it for you, for which there may be a small charge. Depending on the content of the revision and other factors, you may be sent an EEPROM free of charge, offered a free EEPROM, or you may be able to purchase an upgrade. -
Page 11: Getting Started
Power Check that the voltage setting is correct for your local requirements. Power up the unit. During the power- up self-test sequence you will see the meters indicate the “Apogee Wave” if all is well. Sync Source Initially, you’ll probably want to set this to CRYSTAL just to make sure everything is working OK. Repeatedly press the button immediately below the columns of sync source indicators on the far left of the unit until CRYS- TAL is indicated. -
Page 12: Sample Rate
AD-8000 Operating Manual If you have the optional Video Sync module installed, the AD-8000 gains the ability to lock to PAL, NTSC or Monochrome (B&W) external video sync, chosen by selecting VIDEO. The connected video sync is automatically detected, locked to and the sync rate is displayed. -
Page 13: Soft Limit
® UV22 is Apogee’s exclusive process of encoding high resolution (20 to 24 bit) digital audio into 16 or 20 bit formats – avoiding truncation, dithering or “noise shaping”, processes that either add noise or can adverse- ly affect the audio quality of your recording. You can apply UV22 to individual analog input channels or pairs of digital inputs. -
Page 14: Calibrate
If you do not wish to restore the pre- vious settings on power-up, hold the OVERS button down during the power-up sequence. And, incidentally, if the power-on “Apogee wave” gets boring, you can skip it by holding the CLEAR METERS button down during power-up. -
Page 15: Monitor
Interface Protocol. You will need special Toslink optical cables to utilize the card, one to send to the ADAT and one to return from it to the AD-8000. The card includes Apogee Bit-Splitting technology to enable 20- and 24- bit channels to be recorded on multiple 16-bit tracks. The more recent 20-bit ADAT-format machines are also supported. -
Page 16: Digi 8 (Pro Tools) Ambus Card
This connector is wired to the same pinout as Yamaha AES interfaces and the same cables may be used as an alternative to the AES Interface breakout cable available from Apogee. DIGI 8 Plus (Pro Tools) AMBus Card ®... -
Page 17: Video Module Sync Options
AD-8000 Operating Manual Once a sync source is selected, the processor measures the sample rate and sets the sample rate LEDs appropriately. The measurement is accurate to one part in 2000, so that a “pulled” rate can be distinguished accurately. For example, 47.952 kHz can be distinguished from 48 kHz. The processor disables invalid sync selections—selecting 44.1 when the external sync source is at 48 is not allowed, for example. -
Page 18: Autosync
AD-8000 Operating Manual At power-up, the microprocessor will recall the last selected sync source and determine if it is active (via the measurement circuitry.) If it is active, then the AD-8000 will lock to it, preferably at the old sample rate, or if that is not possible, at the present sample rate. -
Page 19: Rear Panel
AD-8000 Operating Manual button is used to select S/PDIF as SOURCE. Likewise when the S/PDIF SYNC SOURCE LED is lit while the AES/EBU SYNC SOURCE LED is blinking then AES/EBU may be selected as SYNC SOURCE if the SOURCE but- ton is used to select AES/EBU as SOURCE. -
Page 20: Analog Inputs
20 dB of gain, a precision balancing circuit (for unbalanced inputs), buffer ampli- fiers to drive the A/D, and Apogee’s proprietary Soft Limit circuit with trimpot-adjustable thresholds. To adjust the Soft Limit threshold, it is necessary to remove the unit’s top cover. See the Card Installation and Adjustments Guide at the end of this manual. -
Page 21: Standard
AD-8000 Operating Manual Headroom requirements vary with the type of music, but can range from 8 dB for rock, to 24 dB for classi- cal music. The first amplifier stage can accommodate this range with no compromise in the noise floor due to careful design. -
Page 22: Input Resolution Indicators
ADAT output connector will carry the same audio that is going out on AES/EBU jacks 1-4. ABS, PaqRat and AMBus Some AMBus cards, such as those for ADAT, TDIF and AES/EBU, have built-in ABS (Apogee Bit-Splitting) for recording six channels at 20-bit resolution (“6/20”), or four channels at 24-bit resolution (“4/24”, compati- ble with Rane Corporation’s PaqRat... -
Page 23: Digital Processing
AD-8000 Operating Manual Eight-Channel D/A (Optional) The optional 8-channel D/A card contains four 24-bit stereo DACs with filtering, digital de-emphasis (includ- ing de-emphasis override for digital signals with an incorrectly-set emphasis flag), DC removal, automatic soft mute and gain adjustment circuitry. The same output channels going to the AES/EBU output jacks are also rout- ed to the 8-channel D/A card. -
Page 24: Appendix Ii: About Uv22 Super Cd Encoding
CD titles have already been mastered using Apogee UV1000 Super CD Encoders and the Apogee AD-1000. Apogee’s UV22 is today in use in the vast majority of US mastering houses, and it is estimated that as many as 80% of the hit records mastered in the United States today utilize UV22. -
Page 25: Appendix Iii: Typical System Configurations
AD-8000 Operating Manual UV22HR will be fitted to new AD-8000 units, and will be available as an upgrade to most AD-8000s. For availability information, check our Web site at http://www.apogeedigital.com/ UV22 Process Caveats UV22 Encoding is intended to be applied at the final step in the signal chain before the actual master- ing device. -
Page 26: Ad-8000 With Adat Machines
AD-8000 Operating Manual ADATs AD-8000 Digital Master AMBus ADAT8 OPTICAL AMBus ADAT8 OPTICAL AMBus ADAT 1 ADAT8 OPTICAL slave to AD-8000 WC via optical ADAT Sync ADAT 2 slave to BRC ADAT sync ADAT Sync ADAT 3 slave to BRC ADAT sync... -
Page 27: Ad-8000 With Daw/Digital Console/Adats
AD-8000 Operating Manual DAW/Digital Console/ADATs DIGITAL CONSOLE clock slave to AD-8000 AES TC slave to MTC from BRC (for automation) AD-8000 Digital Master Pro Tools AMBus AMBus ADAT8 WORD CLOCK to 48K INPUT OPTICAL AMBus ADAT8 OPTICAL AMBus ADAT 1... -
Page 28: Ad-8000 With Adats, Video Sync Generator, Vtr Etc
AD-8000 Operating Manual NTSC Generator (clock master)/VTR (transport slave)/ DAW/Digital Console/ADATs NTSC Generator: Master Clock DIGITAL CONSOLE clock slave to AD-8000 AES NTSC TC slave to MTC from BRC (for automation) AD-8000 slave to NTSC Generator Pro Tools AMBus AMBus... -
Page 29: Ad-8000 With Da-88 Machines
AD-8000 Operating Manual DA-88s AD-8000 Master Word Clock AMBus AMBus AMBus TDIF TDIF Word Clock TDIF DA-88 #1 slave to AD-8000 WC (set to reference EXT SYNC DA-88 #2 slave to DA-88 1 'sync in' (set to CHASE) SYNC DA-88 #3... -
Page 30: Ad-8000 With Daw/Digital Console/Da-88S
AD-8000 Operating Manual DAW/Digital Console/DA-88s DIGITAL CONSOLE clock slave to AD-8000 AES TC slave to MTC from DA-88 #1 (for automation) AD-8000 Digital Master AMBus Pro Tools AMBus AMBus AMBus Word Clock TDIF TDIF TDIF MTC from SY-88 card DA-88 #1... -
Page 31: Ad-8000 With Da-88S, Video Sync Generator, Vtr Etc
AD-8000 Operating Manual NTSC Generator (clock master)/VTR (transport slave)/ DAW/Digital Console/DA-88s NTSC Generator: Master Clock DIGITAL CONSOLE NTSC clock slave to AD-8000 AES video signal TC slave to MTC from DA-88 #1 black burst (for automation) AD-8000 slave to NTSC Generator... -
Page 32: Appendix Iv: Ad-8000 Specifications
Version 1.3, December 1997 – Corrections and additions to reflect firmware revisions to 1.15. Changes from previous firmware revisions is available on the Apogee Web Site. Version 1.4, November 1998 – Corrections and additions to meet CE requirements. Some additional informa- tion included. -
Page 33: Appendix V: Installation And Internal Settings Guide
Apogee cannot be held responsible for damage or injury caused by failing to follow these directions, failing to use reasonable care during operations involving the removal of the top cover of the unit, or failing to use rea- sonable precautions generally understood in the professional audio industry to be necessary when working internally on equipment of this type, whether or not such precautions are included in this document. -
Page 34: Installing The System Eeprom
AD-8000 Operating Manual To remove the module, ease it out of the connectors by gently rocking the module back and forth while pulling upward. If the module fails to operate correctly, it is most likely reversed or offset in the connectors. Please check that the orientation is correct before calling technical support. -
Page 35: Warranty Terms & Conditions
Apogee a result of acts beyond the control of Apogee, includ- dealer, to be free from defects in materials and work- ing, but not limited to: manship for a period of 12 (twelve) months from the date of purchase.